#模块module11a 对应文件是module11a.py
#文件路径名:day04-mypackage-package1-package11
def m11afun1():
    print('这是module11a中的函数m11afun1')
#定义变量
PI=3.1415
#定义类
class M11a:
    def m11afun2(self):
        print('这是module11a中类M11a的函数')
if __name__=='__main__':
    m11afun1()
    c=M11a()
    print(PI)
    c.m11afun2()